241 lines
8.6 KiB
Markdown
241 lines
8.6 KiB
Markdown
---
|
||
name: tweaks
|
||
description: |
|
||
Wrap any HTML artifact with a side panel of live, parameterized
|
||
controls — accent color, type scale, density, motion, theme — that
|
||
rewrite CSS custom properties in real time and persist to
|
||
localStorage. Lets the user explore variants of a design without
|
||
re-prompting the agent. Use when the brief asks for "variants",
|
||
"side-by-side options", "tweak this", "let me adjust", "live
|
||
knobs", or "实时调参".
|
||
triggers:
|
||
- "tweaks"
|
||
- "variants"
|
||
- "tweak panel"
|
||
- "live controls"
|
||
- "adjust on the fly"
|
||
- "实时调参"
|
||
- "可调参数面板"
|
||
- "side panel"
|
||
- "knobs"
|
||
od:
|
||
mode: prototype
|
||
platform: desktop
|
||
scenario: design
|
||
upstream: "https://github.com/alchaincyf/huashu-design"
|
||
preview:
|
||
type: html
|
||
entry: index.html
|
||
design_system:
|
||
requires: false
|
||
example_prompt: "Wrap this landing page with a tweak panel — accent color, type scale, density, light/dark — persist to localStorage so the user can refresh without losing their choice."
|
||
---
|
||
|
||
# Tweaks Skill · 参数化变体面板
|
||
|
||
Wrap any HTML artifact with a side panel of live controls that rewrite
|
||
CSS custom properties in real time and persist to `localStorage`.
|
||
Inspired by the *huashu-design* tweak pattern.
|
||
|
||
## What you produce
|
||
|
||
A single self-contained HTML file with two layers:
|
||
|
||
1. **Stage** — the original artifact (landing page / deck / dashboard)
|
||
re-keyed so all visual decisions read from CSS custom properties:
|
||
`--accent`, `--scale`, `--density`, `--mode`, `--motion`.
|
||
2. **Panel** — a fixed sidebar (or drawer on small viewports) with
|
||
form controls bound to those custom properties via a tiny
|
||
vanilla-JS bridge. Persists every change to `localStorage` keyed
|
||
by the artifact identifier.
|
||
|
||
The user can:
|
||
|
||
- Open the artifact and see the stage rendered with their saved
|
||
preferences (or sensible defaults).
|
||
- Adjust accent / scale / density / mode / motion in the panel and
|
||
watch the stage update instantly — no rerender.
|
||
- Press <kbd>T</kbd> to hide / reveal the panel; <kbd>R</kbd> to
|
||
reset to defaults.
|
||
- Refresh the page — every choice is persisted.
|
||
|
||
## When to use
|
||
|
||
- The user generated something they like 80% of, and wants to dial
|
||
in the last 20% themselves.
|
||
- You're presenting a design system / brand and want the audience to
|
||
feel the variants live (instead of you re-running the agent).
|
||
- You're shipping a stand-alone demo (e.g. a portfolio piece) and
|
||
want viewers to play.
|
||
|
||
## When *not* to use
|
||
|
||
- One-shot artifacts that won't be iterated on (e.g. a runbook —
|
||
parameters don't help).
|
||
- When the artifact's value is in fixed ratios (e.g. an infographic
|
||
with carefully balanced data viz — knobs would degrade it).
|
||
|
||
## The 5 standard knobs
|
||
|
||
> Pick a subset that suits the artifact. Don't ship all 5 if only 2
|
||
> matter — clutter is a regression.
|
||
|
||
### 1. `--accent` — Accent color
|
||
|
||
A select with 5–8 curated swatches (don't ship a free color picker —
|
||
the user will pick a bad color and blame you).
|
||
|
||
```js
|
||
const ACCENT_PRESETS = [
|
||
{ id: 'rust', val: '#c96442', label: 'Rust' },
|
||
{ id: 'cobalt', val: '#2c4d8e', label: 'Cobalt' },
|
||
{ id: 'sage', val: '#4a7a3f', label: 'Sage' },
|
||
{ id: 'plum', val: '#7a3f6a', label: 'Plum' },
|
||
{ id: 'graphite',val: '#3a3a3a', label: 'Graphite' },
|
||
];
|
||
```
|
||
|
||
The artifact uses `var(--accent)` everywhere it had a hard-coded
|
||
accent before. Border / link / pull-quote rule / CTA all flip
|
||
together.
|
||
|
||
### 2. `--scale` — Type scale (0.85 / 1.0 / 1.15)
|
||
|
||
Three settings: *Compact* (0.85), *Normal* (1.0), *Generous* (1.15).
|
||
All `font-size` declarations multiply by `var(--scale)` via
|
||
`calc(... * var(--scale))`.
|
||
|
||
Don't go beyond ±15% — beyond that the layout breaks (column flow,
|
||
breakpoints, line counts).
|
||
|
||
### 3. `--density` — Layout density (Tight / Normal / Roomy)
|
||
|
||
Three settings that swap the spacing scale: *Tight* (0.75) /
|
||
*Normal* (1.0) / *Roomy* (1.4). All `padding` / `gap` / `margin`
|
||
declarations multiply by `var(--density)`.
|
||
|
||
This is the highest-impact knob — it's also the most fragile, so
|
||
**every layout-critical container must declare its base spacing in
|
||
custom properties** before you wrap.
|
||
|
||
### 4. `--mode` — Light / Dark
|
||
|
||
A 2-state toggle. Sets `data-mode="light"` vs `"dark"` on the
|
||
`<html>` element and the artifact's `:root` selector responds with
|
||
two color sets.
|
||
|
||
If the artifact already has a media-query-based dark mode, *replace*
|
||
it with the data-attr version — the user's choice should win over
|
||
their OS.
|
||
|
||
### 5. `--motion` — Off / Subtle / Lively
|
||
|
||
Three settings. Maps to a CSS variable `--motion-mult` that scales
|
||
all `transition-duration` / `animation-duration` declarations:
|
||
|
||
- *Off* — `0s` (also disables WebGL canvases / decorative animation).
|
||
- *Subtle* — `1.0` (the artifact's authored timing).
|
||
- *Lively* — `1.6` (slower transitions, more visible motion).
|
||
|
||
Respect `prefers-reduced-motion`: default to *Off* if the user has
|
||
that set, regardless of stored preference.
|
||
|
||
## Implementation primitives
|
||
|
||
Read `assets/wrap.html` — it ships the panel + bridge as an
|
||
inert template. Your job is to:
|
||
|
||
1. Take the user's existing artifact HTML.
|
||
2. Lift its accent / mode / spacing / scale into custom properties
|
||
(search for hard-coded `#hex` / `Npx` / `Nrem` and convert).
|
||
3. Paste the contents into the marked region of `wrap.html`.
|
||
4. Edit `assets/wrap.html`'s `KNOBS` array to keep only the knobs
|
||
you decided are relevant to *this* artifact. Don't ship 5 if 2
|
||
matter.
|
||
5. Patch the `STORAGE_KEY` to a unique slug (`tweaks-<artifact-slug>`).
|
||
|
||
The bridge in `wrap.html`:
|
||
- Loads `localStorage[STORAGE_KEY]` JSON on first paint.
|
||
- Applies values as `document.documentElement.style.setProperty('--accent', ...)`.
|
||
- Listens to every form control's `change` event and writes back.
|
||
- Exposes <kbd>T</kbd> (toggle panel) and <kbd>R</kbd> (reset).
|
||
|
||
## Workflow
|
||
|
||
### Step 1 — Acquire the artifact
|
||
|
||
Same options as the critique skill:
|
||
|
||
1. Project file (`index.html` in the project folder).
|
||
2. Pasted HTML in the chat.
|
||
3. Generated by you in this turn.
|
||
|
||
### Step 2 — Decide which knobs apply
|
||
|
||
Read the artifact's CSS first. For each knob, decide *yes / no*:
|
||
|
||
- `--accent` — yes if the artifact has 1 accent color used ≥ 3 times.
|
||
- `--scale` — yes if the artifact is type-driven (article, deck,
|
||
pricing page).
|
||
- `--density` — yes if the artifact has consistent gap / padding
|
||
rhythm (deck, dashboard, landing). No for runbooks (already dense).
|
||
- `--mode` — yes if the artifact has authored dark mode tokens, or
|
||
you're willing to derive them.
|
||
- `--motion` — yes if the artifact has any transition / animation
|
||
worth scaling. No for static reports / critique reports.
|
||
|
||
Default: **3 knobs is the sweet spot.** Five is too busy, one is
|
||
not worth a panel.
|
||
|
||
### Step 3 — Lift hard-coded values into custom properties
|
||
|
||
Open `assets/wrap.html`'s `<style>` block — copy its custom-property
|
||
naming scheme (`--accent`, `--scale`, etc.). In the user's artifact,
|
||
find every place those concerns live and rewrite:
|
||
|
||
- `color: #c96442` → `color: var(--accent)`
|
||
- `font-size: 18px` → `font-size: calc(18px * var(--scale))`
|
||
- `padding: 24px 32px` → `padding: calc(24px * var(--density)) calc(32px * var(--density))`
|
||
- `transition: opacity 200ms` → `transition: opacity calc(200ms * var(--motion-mult))`
|
||
|
||
If the artifact uses `clamp()` or `vw` already, multiply the
|
||
*outer* value by the custom property — don't tear apart `clamp(...)`.
|
||
|
||
### Step 4 — Paste into the wrap
|
||
|
||
Copy the artifact's `<style>` and `<body>` into the marked regions
|
||
of `wrap.html`. Keep the panel + bridge intact.
|
||
|
||
### Step 5 — Test the loop
|
||
|
||
Open the result, click each knob at least once, refresh the page,
|
||
confirm the choice persists. If a knob breaks the layout —
|
||
*remove it*, don't ship it.
|
||
|
||
## Output contract
|
||
|
||
```
|
||
<artifact identifier="tweaks-<artifact-slug>" type="text/html" title="<Artifact Title> · Tweaks">
|
||
<!doctype html>
|
||
<html>...</html>
|
||
</artifact>
|
||
```
|
||
|
||
One sentence before the artifact ("Wrapped X with a 3-knob tweak
|
||
panel — accent / scale / mode."). Stop after `</artifact>`.
|
||
|
||
## Hard rules
|
||
|
||
- **Don't ship a free color picker** — only curated swatches. Users
|
||
pick bad colors when given freedom; saving them from that is the
|
||
whole point.
|
||
- **Persist by artifact identifier** — `tweaks-<slug>`, not a global
|
||
key. Two artifacts open in two tabs must not share state.
|
||
- **Respect `prefers-reduced-motion`** — default to *Off* for motion
|
||
if the user has that set, override only on explicit click.
|
||
- **Single-file** — no external CSS / JS / fonts beyond the artifact's
|
||
existing imports. Inline the panel + bridge.
|
||
- **Panel hidden by default on viewports < 720px** — slide-in drawer
|
||
via a "T" button at top-right.
|
||
- **Don't ship more than 5 knobs.** Three is the sweet spot.
|